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<div class="section" id="renaming-cleanup">
<h1><a class="toc-backref" href="./changes-in-boost-1-32-0.html#id68" name="renaming-cleanup">Renaming/Cleanup</a></h1>
<ol class="arabic">
<li><p class="first">The <tt class="literal"><span class="pre">apply_if</span></tt> metafunction has been renamed to <tt class="literal"><span class="pre">eval_if</span></tt>.</p>
</li>
<li><p class="first">All <tt class="literal"><span class="pre">_backward</span></tt> algorithm counterparts have been renamed to use <tt class="literal"><span class="pre">reverse_</span></tt> 
prefix; e.g. <tt class="literal"><span class="pre">fold_backward</span></tt> became <tt class="literal"><span class="pre">reverse_fold</span></tt>.</p>
</li>
<li><p class="first">The <tt class="literal"><span class="pre">&lt;boost/mpl/aux_/has_xxx.hpp&gt;</span></tt> header has been made public and became
<tt class="literal"><span class="pre">&lt;boost/mpl/has_xxx.hpp&gt;</span></tt>; correspondingly, the <tt class="literal"><span class="pre">BOOST_MPL_NO_AUX_HAS_XXX</span></tt>
macro was renamed to <tt class="literal"><span class="pre">BOOST_MPL_CFG_NO_HAS_XXX</span></tt>.</p>
</li>
<li><p class="first"><tt class="literal"><span class="pre">&lt;boost/mpl/assert_is_same.hpp&gt;</span></tt> header has been replaced by a more
general <tt class="literal"><span class="pre">&lt;mpl/assert.hpp&gt;</span></tt>; the new asserts provide a significantly
higher-quality diagnostics. See the table below for new equivalents of
the old macros:</p>
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<col width="45%" />
<col width="55%" />
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<tr><th><p class="first last">Before</p>
</th>
<th><p class="first last">Now</p>
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<tr><td><p class="first last"><tt class="literal"><span class="pre">BOOST_MPL_ASSERT_IS_SAME(t1,</span> <span class="pre">t2)</span></tt></p>
</td>
<td><p class="first last"><tt class="literal"><span class="pre">BOOST_MPL_ASSERT((</span> <span class="pre">boost::is_same&lt;t1,t2&gt;</span> <span class="pre">))</span></tt></p>
</td>
</tr>
<tr><td><p class="first last"><tt class="literal"><span class="pre">BOOST_MPL_ASSERT_IS_NOT_SAME(t1,</span> <span class="pre">t2)</span></tt></p>
</td>
<td><p class="first last"><tt class="literal"><span class="pre">BOOST_MPL_ASSERT_NOT((</span> <span class="pre">boost::is_same&lt;t1,t2&gt;</span> <span class="pre">))</span></tt></p>
</td>
</tr>
</tbody>
</table>
<p>The &quot;Macros/Asserts&quot; section of the <a class="reference" href="./reference-manual.html">reference manual</a> provides a
complete formal specification of the new macros' semantics.</p>
</li>
<li><p class="first">All configuration macros have been renamed to include the <tt class="literal"><span class="pre">CFG</span></tt> prefix; in 
particular, <tt class="literal"><span class="pre">BOOST_MPL_NO_FULL_LAMBDA_SUPPORT</span></tt> has become 
<tt class="literal"><span class="pre">BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT</span></tt>.</p>
</li>
<li><p class="first">The following public headers/components have been renamed or removed as 
obsolete:</p>
<pre class="literal-block">
iterator_tag.hpp (renamed to iterator_tags.hpp)
project1st.hpp
project2nd.hpp
select1st.hpp
select2nd.hpp
</pre>
</li>
</ol>
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